diff --git a/source/dub/packagemanager.d b/source/dub/packagemanager.d
index dfd4a5a..610ccfb 100644
--- a/source/dub/packagemanager.d
+++ b/source/dub/packagemanager.d
@@ -394,8 +394,14 @@
 		writeLocalPackageList(type);
 	}
 
-	Package addTemporaryPackage(Path path, Version ver)
+	Package getTemporaryPackage(Path path, Version ver)
 	{
+		foreach (p; m_temporaryPackages)
+			if (p.path == path) {
+				enforce(p.ver == ver, format("Package in %s is refrenced with two conflicting versions: %s vs %s", path.toNativeString(), p.ver, ver));
+				return p;
+			}
+		
 		auto info = jsonFromFile(path ~ PackageJsonFilename, false);
 		string name;
 		if( "name" !in info ) info["name"] = path.head.toString();
diff --git a/source/dub/project.d b/source/dub/project.d
index 2dd341b..4c31e27 100644
--- a/source/dub/project.d
+++ b/source/dub/project.d
@@ -186,7 +186,7 @@
 					Path path = vspec.path;
 					if( !path.absolute ) path = pack.path ~ path;
 					logDiagnostic("Adding local %s %s", path, vspec.version_);
-					p = m_packageManager.addTemporaryPackage(path, vspec.version_);
+					p = m_packageManager.getTemporaryPackage(path, vspec.version_);
 				} else {
 					p = m_packageManager.getBestPackage(name, vspec);
 				}